Windshield heater



July 3, 1928. 1,675,911

F. E. ROBERTS WINDSHIELD HEATER Filed Feb. l, 1926 C@ V/dW/ame JPatented Jury 3, 192s.

UNITED STATES FLOYD E. ROBERTS, 0F MELBOURNE, IOWA.

WINDSHIELD HEATER.

Application led February electrical heating element imbedded in the rglass of the windshield wherein the windshield may be warmed. to such anextent that the glass will be kept clear of any of the obstaclesordinarily interfering with the vision through the glass in coldweather.

Nith these and other objects in view, my invention consists in theconstruction, arrangement and combination of the various parts of mydevice, whereby the objects contemplated are attained, as hereinaftermore fully set forth, pointed out in my claims, and illustrated in theaccompanying drawings, in which:

Figure 1, is a perspective view of the inside of an automobile of theenclosed type with my improved device installed in the windshield. L

Figure 2, is. an enlarged sectional'view taken on4 line 2 2 of Figure 1and Figure Sis a diagrammatic view of the electrical circuitfor mydevice.

In 'the accompanying drawingsy I `have used thereference numeral 10 toindicate a windshield which is mounted in a suitable frame 11 of theautomobile 12. The .automobile 12 includes a dash board 13 upon whichthe various control instruments are mounted.

The glass 10 has imbedded in it an electrical heating element 14 havingits ends connected to lead sleeves 15 extending through openingsformedin the windshield itself.

The sleeve 15 has a shoulder or flange on its outer end as clearly shownin Figure 2 of the drawings.

A contact post 16 is mounted in each sleeve 15 and has a washer 17 ofcompressible material on its inner end which abuts against the innersurface of the windshield 10.

1, 192s. serial No. 85,193'.

A locking nut 18`is mounted on each contact post 16 and engages thewasher 17.

A second nut 19 is mounted on each of the posts 16 and is designed toreceive between itself and the nut 18, the electric wires 2O which formspart of an electric circuit '21.

The electirc circuit 21 includes a battery or electric supply and arheostat control 21 which may be mounted upon the instrument or dashboard 13.

The rheostat control permits the heating element tobe slightly heated ifdesired or heated to a greater extent, if desired.

The wires`20 .may be disconnected during the summer months if desired,wherein the windshield may be opened in the ordinary manner.

The sleeves 15 are of conductive material and connect the contact posts16 with the heating element 14.

The washer 17 of com ressible material prevents any possible breaking ofthe windshield 1() when the' contact posts are tightened in the sleeves15. i

My device is very yeiiicient in that it enables the windshield to bekept inV such a condition -as will not in any way interfere with thevision therethrough.

The heating element itself is'so spaced and placed within the glass ofthe Windshield'as not to interfere or affect the vision.

Some changes may be made in the construction and arrangement of thevarious parts of my invention, without departing from the real spiritand purpose of my invention, and it is my intention to cover by myclaims, any modied forms of structure or use of mechanical equivalents,which may be reasonably included within their scope.

I claim as my invention:

1. In combination with a sheet of glass or the like havin an openingformed therein and a wire im edded in the glass with one end extendinginto said opening, an electrical connection comprising a soft metalbushin of the same diameter as the opening, said bushing being forcedinto said opening whereby the extending end of thelwire in said openingis imbedded in said bushing and `means for connecting a source ofelectric current to said bushing. Y

2. In combination with a sheet of glass or the vlike havin an openingformed therein and a wire im ded in the glass with one end extendinginto said opening, an electrical connection comprising a soft metal ingand having a, nut on the side of the glass bushing, anged at one end andhaving its opposite the ange of the bushing and a soft .body portion ofthe same diameter 'as the metal washer interposed between the nut and l0opening, said bushing being forced into theglass and means forconnecting a source 5 said opening whereby the extendingvend of ofelectric current to said bushing.

the Wire in' said opening is imbedded in said bushing, a bolt extendingthrough said bush- FLOYD E. ROBERTS.

